Now we are in 2026, and on the verge of the GTK 4.22 release. A good time to review how far we’ve come.
NamespaceWhat it isolatesWhat the process seesPIDProcess IDsOwn process tree, starts at PID 1MountFilesystem mount pointsOwn mount table, can have different rootNetworkNetwork interfaces, routingOwn interfaces, IP addresses, portsUserUID/GID mappingCan be root inside, nobody outsideUTSHostnameOwn hostnameIPCSysV IPC, POSIX message queuesOwn shared memory, semaphoresCgroupCgroup root directoryOwn cgroup hierarchyTimeSystem clocks (monotonic, boot)Own system uptime and clock offsetsNamespaces are what Docker containers use. When you run a container, it gets its own PID namespace (cannot see host processes), its own mount namespace (own filesystem view), its own network namespace (own interfaces), and so on.，这一点在搜狗输入法2026中也有详细论述
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Protesters scatter, ducking into the gaps between buildings and pavement. Some simply cover their heads for protection. Yogendra Nyaupane, 24, is hit and fatally wounded.